Brother MFC8500 Service Manual
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Brother MFC8500 Service Manual

Brother MFC8500 Service Manual

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See also: Owner's Manual , User Manual
FACSIMILE EQUIPMENT
SERVICE MANUAL
MODEL: MFC8500/FAX4100/FAX4750e/FAX5750e
MFC9660/FAX8360P
WWW.OASD.CN
WWW.OASD.CN

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Summary of Contents for Brother MFC8500

  • Page 1 WWW.OASD.CN FACSIMILE EQUIPMENT SERVICE MANUAL MODEL: MFC8500/FAX4100/FAX4750e/FAX5750e MFC9660/FAX8360P WWW.OASD.CN...
  • Page 2 WWW.OASD.CN © Copyright Brother 2002 All rights reserved. No part of this publication may be reproduced in any form or by any means without permission in writing from the publisher. Specifications are subject to change without notice. All products and company names mentioned in this manual are trademarks or registered trademarks of their respective holders.
  • Page 3 PREFACE This publication is a Service Manual covering the specifications, construction, theory of operation, and maintenance of the Brother facsimile equipment. It includes information required for field troubleshooting and repair--disassembly, reassembly, and lubrication--so that service personnel will be able to understand equipment function, to rapidly repair the equipment and order any necessary spare parts.

  • Page 4: Safety Information

    The label for Chinese products MANUFACTURED: JULY 1999 BROTHER CORP. (ASIA) LTD. BROTHER BUJI NAN LING FACTORY Gold Garden Industry, Nan Ling Village, Buji, Rong Gang, Shenzhen, China. This product complies with FDA radiation performance standards, 21 CFR Subchapter J.

  • Page 5: General Description

    WWW.OASD.CN CHAPTER I. GENERAL DESCRIPTION WWW.OASD.CN...
  • Page 6 WWW.OASD.CN CHAPTER I. GENERAL DESCRIPTION CONTENTS EQUIPMENT OUTLINE .................... I-1 1.1 External Appearance and Weight ..............I-1 1.2 Components ..................... I-1 SPECIFICATIONS..................... I-2 WWW.OASD.CN...

  • Page 7: Equipment Outline

    WWW.OASD.CN EQUIPMENT OUTLINE External Appearance and Weight The figure below shows the equipment appearance and approximate dimensions. w/o 2nd cassette w/ 2nd cassette Weight: Machine proper 10.5 kg 14.0 kg Machine (incl. drum unit & toner cartridge) 12.0 kg 15.5 kg In package 16.5 kg 22.0 kg...

  • Page 8: Specifications

    WWW.OASD.CN SPECIFICATIONS (1/4) Model Name MFC8500 F AX4100 GENERAL Print Engine Laser (ZLe) Laser (ZLe) Modem Speed(bps) 14,400(Fax) 14,400(Fax) Transmission Speed(sec.) Approx. 6 Approx. 6 ITU-T Group Coding Method MH/MR/MMR MH/MR/MMR Input/Output Width 5.8"-8.5"/2.75"-8.5" 5.8"-8.5"/2.75"-8.5" ADF(pages) 30 (50:Conditional *1) LCD Size...
  • Page 9 WWW.OASD.CN (1/4) Model Name FAX4750e FAX5750e GENERAL Print Engine Laser (ZLe) Laser (ZLe) Modem Speed(bps) 33,600(Fax) 33,600(Fax) Transmission Speed(sec.) Approx. 2 Approx. 2 ITU-T Group Super G3 Super G3 Coding Method MH/MR/MMR/JBIG MH/MR/MMR/JBIG Input/Output Width 5.8"-8.5"/2.75"-8.5" 5.8"-8.5"/2.75"-8.5" ADF(pages) 30 (50:Conditional *1) 30 (50:Conditional *1) LCD Size 16 Characters x 2 Lines...
  • Page 10 WWW.OASD.CN (2/4) Model Name MFC8500 F AX4100 Internet FAX N / A N / A Easy Receive/Fax Detect Fax/Tel Switch Super Fine Yes (TX & RX) Yes (TX & RX) 300dpi Transmission N / A N / A Gray Scale Contrast Yes (Auto/S.Light/S.Dark)
  • Page 11 WWW.OASD.CN (2/4) Model Name FAX4750e FAX5750e Internet FAX Available with Option[NC-8100h] Easy Receive/Fax Detect Fax/Tel Switch Super Fine Yes (TX & RX) Yes (TX & RX) 300dpi Transmission N / A N / A Gray Scale Contrast Yes (Auto/S.Light/S.Dark) Yes (Auto/S.Light/S.Dark) Smoothing Call Reservation Over Auto TX N / A...
  • Page 12 WWW.OASD.CN (3/4) Model Name MFC8500 FAX4100 PRINTER Available with Web download Color/Mono Mono Mono Engine Type Laser(ZL) Laser(ZLe) Resolution(dpi) 600x600 600x600 Speed(ppm) up to 15 (Letter size) up to 15 (Letter size) Output Paper Capacity(sheets) Standard Print Language Windows GDI(600x600)
  • Page 13 WWW.OASD.CN (3/4) Model Name FAX4750e FAX5750e PRINTER Available with Web download Yes - standard Color/Mono Mono Mono Engine Type Laser(ZLe) Laser(ZLe) Resolution(dpi) 600x600 600x600 Speed(ppm) up to 15(Letter size) up to 15(Letter size) Output Paper Capacity(sheets) Standard Print Language Windows GDI(600x600) Windows GDI(600x600) Emulation N / A...
  • Page 14 N / A *1: Xerox 4200 20lb paper under Office Condition (Temperature/Humidity) *2: Brother Chart #1 with JBIG Coding System and Standard Resolution *3: USB - Windows98/Me/2000/XP and iBook/iMAC/G3/G4 only. *4: The interface connector is covered with a plastic plate.
  • Page 15 Yes - standard *1: Xerox 4200 20lb paper under Office Condition (Temperature/Humidity) *2: Brother Chart #1 with JBIG Coding System and Standard Resolution *3: USB - Windows98/Me/2000/XP and iBook/iMAC/G3/G4 only. *4: The interface connector is covered with a plastic plate.
  • Page 16 Model Name MFC-9660 FAX8360P GENERAL Print Engine Laser (ZLe) Laser (ZLe) Modem Speed(bps) 33,600(Fax) 33,600(Fax) Transmission Speed(sec.) Approx.2 ( Brother#1, JBIG ) Approx.2 ( Brother#1, JBIG ) ITU-T Group Super G3 Super G3 Coding Method MH/MR/MMR/JBIG MH/MR/MMR/JBIG Input/Output Width 5.8"-8.5"/2.75"-8.5" 5.8"-8.5"/2.75"-8.5"...
  • Page 17 WWW.OASD.CN (2/4) Model Name MFC-9660 FAX8360P Internet FAX Available with Option ( NC8100h ) Easy Receive/Fax Detect Fax/Tel Switch Super Fine Yes (TX & RX) Yes (TX & RX) 300dpi Transmission Gray Scale Contrast Yes (Auto/Light/Dark) Yes (Auto/Light/Dark) Smoothing Call Reservation Over Auto TX Password Check Enhanced Remote Activate Multi Resolution Transmission...
  • Page 18 WWW.OASD.CN (3/4) Model Name MFC-9660 FAX8360P PRINTER Color/Mono Mono Engine Type Laser(ZLe) Resolution(dpi) 600x600 Speed(ppm) up to 14 Paper Capacity(sheets) Additional Paper Capacity(sheets) 250 (User Option) Output Paper Capacity(sheets) Standard Print Language Windows GDI(600x600) Emulation PCL5e Yes (Bitmap font:Letter Gothic 16.66, Resident Fonts OCR-A, OCR-B, Scaleable font;...
  • Page 19 Mac OS 8.6 - 9.1 Printer Driver Yes(Brother ) Viewer TWAIN Yes(Brother ) PC Fax Yes(Brother; TX only) *1: Brother Chart #1 with JBIG Coding System and Standard Resolution *2: The interface connector is covered with a plastic plate. I - 13 WWW.OASD.CN...
  • Page 20 WWW.OASD.CN CHAPTER II. INSTALLATION WWW.OASD.CN...
  • Page 21 WWW.OASD.CN CHAPTER 2 INSTALLATION CONTENTS INSTALLING THE UPDATE DATA TO THE FACSIMILE MACHINE......II-1 SETTING ID CODES TO FACSIMILE MACHINES ............II-3 WWW.OASD.CN...
  • Page 22 WWW.OASD.CN INSTALLING THE UPDATE DATA TO THE FACSIMILE MACHINE If you want to update the current program stored in the flash ROM of the main PCB to the newer version or after you replace the main PCB, install the update program onto the flash ROM. The program installation requires a PC/AT-compatible computer (which is capable of running MS-DOS or its compatible OS).
  • Page 23 WWW.OASD.CN Installing the update data onto the flash ROM of the facsimile machine NOTE: The following is an installation procedure example on a PC that is running Windows 95/98. (1) Copy the update data and transfer utility onto the desired directory of the hard disk. e.g., C:\UPDATE (2) Click the Start button, point to Programs, and then click MS-DOS Prompt to open an MS-DOS window.
  • Page 24 SETTING ID CODES TO FACSIMILE MACHINES Brother facsimile machines are assigned unique ID codes (character strings) at the factory. If you replace the main PCB of the machine, the machine will lose its assigned ID code so that it will not be identified by the connected PC*.

  • Page 25: Theory Of Operation

    WWW.OASD.CN CHAPTER III. THEORY OF OPERATION WWW.OASD.CN...

  • Page 26: Table Of Contents

    WWW.OASD.CN CHAPTER III. THEORY OF OPERATION CONTENTS OVERVIEW ....................... III-1 MECHANISMS ......................III-2 Scanner Mechanism..................III-3 2.1.1 Document feeding and ejecting mechanism ..........III-3 2.1.2 Scanner..................... III-3 Laser Printing Mechanism................III-4 2.2.1 Paper pick-up and registration mechanism ..........III-4 2.2.2 Print process mechanism................III-5 (1) Charging process................

  • Page 27: Overview

    WWW.OASD.CN OVERVIEW *Not provided on those models without handset. III - 1 WWW.OASD.CN...

  • Page 28: Mechanisms

    WWW.OASD.CN MECHANISMS The facsimile equipment is classified into the following mechanisms: n SCANNER MECHANISM - Document feeding and ejecting mechanism - Document scanning mechanism n LASER PRINTING MECHANISM - Paper pick-up and registration mechanism - Print process mechanism (consisting of charging, exposing, developing, and transferring processes) with paper feeding mechanism - Heat-fixing mechanism with paper feeding mechanism...

  • Page 29: Scanner Mechanism

    WWW.OASD.CN Scanner Mechanism 2.1.1 Document feeding and ejecting mechanism This mechanism consists of the document stacker, automatic document feeder (ADF), document ejection roller ASSY, and document sensors. (For details about the sensors, refer to Section 2.3.) If you set documents on the document stacker with their faces down and start scanning operation, then the scanner motor rotates so that the ADF (which consists of the document take-in roller ASSY, nip-related parts, separation roller ASSY, and ADF parts) feeds those documents into the equipment, starting from the bottom sheet (first page) to the top (last page), page by page.

  • Page 30: Laser Printing Mechanism

    WWW.OASD.CN Laser Printing Mechanism 2.2.1 Paper pick-up and registration mechanism At the 1st stage, the controller drives the main motor without energizing the solenoid so that the paper feed roller simply idles. At the 2nd stage, the controller energizes the solenoid so that the paper feed roller no longer rotates and the paper pick-up roller starts rotating to pick up paper into the equipment, a sheet at a time.

  • Page 31: Print Process Mechanism

    WWW.OASD.CN 2.2.2 Print process mechanism The print process unit works with laser beam, electrical charges, and toner. The graph below shows the transition of electrical charge on the surface of the laser-sensitive drum through the four processes: charging, exposing, developing, and transferring processes. III - 5 WWW.OASD.CN...

  • Page 32: Charging Process

    WWW.OASD.CN (1) Charging process The high-voltage power supply applies DC bias to the corona wire to generate ion on the grid. The ion uniformly charges the surface of the laser-sensitive drum to approx. 870V which is kept by the voltage regulator grounding the grid to the frame. (2) Exposing process When the laser-sensitive drum holds a positive electrical charge, the laser beam issued from the laser unit scans the drum according to the print image to expose the drum surface for neutralizing...

  • Page 33: Developing Process

    WWW.OASD.CN (3) Developing process The developing process develops an electrostatic latent image formed on the drum in the exposing process, into a toner image. The developer roller attracts the toner particles fed from the toner cartridge by the toner supply roller, and then conveys them to the contact section with the laser-sensitive drum On the contact section between the developer roller and drum, the positive toner particles stick to the neutralized spots on the drum according to the principles of attraction and repulsion,...

  • Page 34: Heat-Fixing Mechanism

    WWW.OASD.CN 2.2.3 Heat-fixing mechanism As the paper passes between the heater roller and the pressure roller in the heat-fixing unit, the heater roller fuses the toner on the paper. The controller monitors the internal resistance of the heater thermistor to keep the surface temperature of the heater roller constant by turning the halogen heater lamp on and off.

  • Page 35: Paper Ejecting Mechanism

    WWW.OASD.CN 2.2.4 Paper ejecting mechanism Exit roller Outer chute Jam sensor actuator (Front) Paper ejection roller Paper Paper ejection sensor actuator Heat-fixing unit After the paper passes through the heat-fixing process, it will be ejected from the heat-fixing unit by the paper ejection roller.

  • Page 36: Sensors And Actuators

    WWW.OASD.CN Sensors and Actuators This machine has 12 sensors: nine photosensors, two thermistors and a mechanical switch as described below. Sensor name Type Located on Document front sensor Photosensor Control panel PCB Control panel Document rear sensor Photosensor Document sensor PCB PCB ASSY Manual insertion sensor Photosensor...
  • Page 37 WWW.OASD.CN * Provided on models equipped with a handset. NOTE: Jam sensor The machine has a jam sensor (not shown in the above illustration) which is on the heat-fixing unit. Location of Sensors and Actuators III - 11 WWW.OASD.CN...

  • Page 38: Control Electronics

    WWW.OASD.CN CONTROL ELECTRONICS The hardware configuration of the facsimile equipment is shown below. board * Control panel PCB ASSY Centronics parallel Document interface Control panel sensor PCB (Document connector (Document rear front sensor) PCB * sensor) Line External TEL NCU PCB Handset Paper ejection sensor PCB...
  • Page 39 WWW.OASD.CN CHAPTER IV. DISASSEMBLY/REASSEMBLY AND LUBRICATION WWW.OASD.CN...
  • Page 40 WWW.OASD.CN CHAPTER IV. DISASSEMBLY/REASSEMBLY AND LUBRICATION CONTENTS DISASSEMBLY/REASSEMBLY ................IV-1 Safety Precautions ....................IV-1 Preparation......................IV-2 How to Access the Object Component ..............IV-2 Disassembly Order Flow..................IV-3 Rear Cover ......................IV-4 Access Plates R and F ..................IV-4 Control Panel ASSY ................... IV-5 Panel Rear Cover and Control Panel ..............
  • Page 41 WWW.OASD.CN 1.23 Inner Insulation Film, High-voltage Power Supply PCB, Engine PCB, and 2nd Cassette Relay PCB*................IV-56 1.24 Toner Sensor (light-receiver) PCB and Toner Sensor (LED) PCB..... IV-58 1.25 Gears and Paper Pick-up Roller................. IV-59 1.26 Paper Feed Roller ASSY..................IV-60 1.27 Clutch Levers, Cassette Guide L, and Solenoid..........

  • Page 42: Disassembly/Reassembly

    WWW.OASD.CN DISASSEMBLY/REASSEMBLY n n n n Safety Precautions To prevent the creation of secondary problems by mishandling, observe the following precautions during maintenance work. (1) Unplug the power cord from the power outlet before accessing parts or units inside the machine.

  • Page 43: Preparation

    WWW.OASD.CN n n n n Preparation Prior to proceeding to the disassembly procedure, (1) Unplug - the power cord, - the modular jack of the telephone line, - the modular jack of the curled cord (and remove the handset)*, - the PC interface cable, and - the modular jack of an external telephone set if connected.

  • Page 44: Disassembly Order Flow

    WWW.OASD.CN n n n n Disassembly Order Flow 1.10 1.28 Paper cassette Control panel ASSY Rear cover Paper sub tray Access plates Panel rear cover R and F - ADF parts - NIP-related parts 1.20 - Document pressure bar NCU shield - Document rear sensor actuator *1 Provided on those models equipped with handset.

  • Page 45: Rear Cover

    WWW.OASD.CN Rear Cover (1) FAX8350P and FAX8750P: Remove the sub rear cover. (2) Remove the three screws (two "a" and one "b") from the rear cover. Screw "b" is provided on those models available with a 2nd paper cassette (as an option or standard). (3) Lightly pressing sections "X,"...

  • Page 46: Control Panel Assy

    WWW.OASD.CN Control Panel ASSY (1) Slightly open the control panel ASSY. (2) Push the right and left arms of the control panel ASSY outwards (in the direction of arrow with your thumbs, then open the control panel ASSY further (arrow to unhook those arms from bosses "x"...

  • Page 47: Panel Rear Cover And Control Panel

    WWW.OASD.CN Panel Rear Cover and Control Panel (1) Place the control panel ASSY upside down. If you do not need to remove the ADF parts, nip-related parts, document pressure bar, or document rear sensor actuator, or anti-static brush, skip to step (7). (2) To remove the ADF parts (spring plates, separation rubber and spring), remove the screw.
  • Page 48 WWW.OASD.CN Remove the two screws from the panel rear cover. Unhook the panel rear cover from eight "X" latches provided on the control panel and lift up the panel rear cover. Fully turn the document front sensor actuator to the rear and take it out. (10) Unhook the document sensor PCB from two "Y"...
  • Page 49 WWW.OASD.CN (13) As shown below, slightly pull the clamps to the front and take out the LCD while pulling the LCD flat cable gently. NOTE: Do not take out the LCD except when the LCD is defective and requires replacement. Reassembling Notes •...

  • Page 50: Document Feed Roller Assy, Document Ejection Roller Assy, And Pinch Rollers

    WWW.OASD.CN Document Feed Roller ASSY, Document Ejection Roller ASSY, and Pinch Rollers (1) Lightly push arm rib "a" to the rear, then pull the document feed roller ASSY to the left and upwards. (2) Lightly push arm rib "b" to the rear, then pull the document ejection roller ASSY to the left and upwards.

  • Page 51: Cis Unit

    WWW.OASD.CN CIS Unit (1) Lightly pull up the arm, move the CIS unit to the right, and lift up the left edge of the CIS unit gently. NOTE: Do not lift up the left edge exceeding 30 mm to prevent the CIS harness connector on the CIS unit from getting broken.

  • Page 52: Scanner Frame Assy (Scanner Motor, Scanner Drive Unit, Document Take-In Roller, Separation Roller, Pressure Rollers, And Control Panel Locks

    WWW.OASD.CN Scanner Frame ASSY (Scanner Motor, Scanner Drive Unit, Document Take-in Roller, Separation Roller, Pressure Rollers, and Control Panel Locks) (1) Remove the two screws from the scanner frame ASSY. (2) Lift up the front edge of the scanner frame ASSY and pull the ASSY towards you to release the three tabs provided on the rear end from the top cover.
  • Page 53 WWW.OASD.CN (4) Turn the scanner frame ASSY upside down. (5) Remove the screw from the scanner motor and turn the motor (as shown below) to release it from the latch. (6) Remove the two screws and take off the scanner drive unit. IV - 12 WWW.OASD.CN...
  • Page 54 WWW.OASD.CN (7) Remove the document take-in roller gear (in the direction of arrow Q) by pulling its pawls outwards. Slightly push down the arm (arrow R) and shift the document take-in roller shaft to the left (arrow S) and take it up. Then shift the document take-in roller to the left and take it up.
  • Page 55 WWW.OASD.CN n n n n Reassembling Notes • The document take-in roller and separation roller are compatible with each other. Their gears are also compatible with each other. However, their shafts are not compatible. The document take-in roller shaft should be a white one; the separation roller shaft should be a black one. When setting these shafts to their rollers, fit the groove provided in each shaft over the longer boss provided on each roller.

  • Page 56: Top Cover (Exit Roller, Speaker, And Document Guides

    WWW.OASD.CN Top Cover (Exit Roller, Speaker, and Document Guides) (1) Disconnect the hook switch harness* and speaker harness from the main PCB. *For models equipped with a handset (2) Remove the harness support rubbers to release the hook switch harness*. (3) Release the scanner motor harness and CIS harness from the hooks provided on the top cover.
  • Page 57 WWW.OASD.CN (4) Remove two screws "a." (5) Open the front cover and remove two screws "b." (6) Pull the tabs of the top cover to the front and upwards (in the direction of arrows ) to release them from the bosses provided on the main cover. (7) Insert the tip of a flat screwdriver and unhook the latches of the top cover (in the direction of arrows ), then lift up the top cover (arrow...
  • Page 58 WWW.OASD.CN (8) Turn the top cover upside down. (9) Peel off anti-static brushes. NOTE: Once removed, they will become unusable and new parts will have to be put back in. (10) As shown below, warp the gear-equipped end of the exit roller and remove it. (11) Unhook the latch from the speaker spring and pull it up.
  • Page 59 WWW.OASD.CN (12) Remove the screw from the inside of the top cover, then remove the document guides L and R as shown below. Reassembling Notes • When reinstalling the paper guides, set them into place, pull them outwards (in the direction of arrows ), and then secure them with the spring, guide gear, and screw (arrow *For models equipped with a handset...
  • Page 60 WWW.OASD.CN • When setting the top cover back into place: - at the right-hand side, put the speaker harness and hook switch harness* into square cutout "X" provided in the right rear corner of the main cover. Raise the panel-main harness coming through the main cover up and through cutout "x"...
  • Page 61 WWW.OASD.CN • When connecting the speaker harness and hook switch harness* to the main PCB: - route the hook switch harness* through the ferrite core of the speaker harness, - make sure that the panel-main harness, speaker harness, and hook switch harness* are routed through the cutout provided in the bottom insulation film, and - make sure that the ferrite cores of the pane-main harness and speaker harness lie inside the bottom insulation film.

  • Page 62: Handset Mount And Hook Switch Pcb (For Models Equipped With A Handset) Side Cover (For Models Without Handset

    WWW.OASD.CN Handset Mount and Hook Switch PCB (for models equipped with a handset) Side Cover (for models without handset) (1) Remove the two screws from the handset mount* or side cover**. (2) Twist the handset mount* or side cover** so that it tilts over to the left and its upper end works out of the bosses provided on the top cover.
  • Page 63 WWW.OASD.CN The following steps should apply to those models equipped with a handset: (3) Disassemble the handset mount by unhooking two latches "a" of the upper handset mount with a flat screwdriver. (4) Remove the hook switch PCB ASSY by unhooking latch "b." (5) Disconnect the hook switch harness from the hook switch PCB.

  • Page 64: Paper Sub Tray

    WWW.OASD.CN 1.10 Paper Sub Tray (1) Turn the paper sub tray up (in the direction of arrow Q). (2) Warp the sub tray and lift it up (arrows R and S). IV - 23 WWW.OASD.CN...

  • Page 65: Vc Cover, Vc Bracket, And Vc Connector Pcb (For Models Supporting Video Capture

    WWW.OASD.CN 1.11 VC Cover, VC Bracket, and VC Connector PCB (for models supporting video capture) (1) Remove two screws ("a" and "b"), then take off the VC cover. (2) Remove screw "c," take out the VC bracket together with the VC connector PCB, and disconnect the VC harness.

  • Page 66: Front Cover

    WWW.OASD.CN 1.12 Front Cover Front Sub Cover (for models not supporting video capture) (1) For models not supporting video capture: Remove the screw and take off the front sub cover from the front cover. (2) Remove the screw from the left bottom of the front side of the main cover. (3) Hold the front cover at an angle of 45°...

  • Page 67: Outer Chute And Paper Pinch Rollers

    WWW.OASD.CN 1.13 Outer Chute and Paper Pinch Rollers (1) Pull up the outer chute and open it (in the direction of arrow Q). (2) Remove the chute springs from the hooks provided on the main cover (arrow R), then lift up the outer chute (arrow S).

  • Page 68: Main Cover

    WWW.OASD.CN 1.14 Main Cover (1) Remove two screws "a" from the front side of the main cover. (2) Remove two screws "b" from the rear side of the main cover, and then pull corner edges "X" outwards to dislocate the main cover from the main chassis. Make sure that the cutout provided in the main cover is dislocated from the power inlet.

  • Page 69: Switch Cover

    WWW.OASD.CN 1.15 Switch Cover (1) Push the locks of the switch cover as shown below and remove it. IV - 28 WWW.OASD.CN...

  • Page 70: Laser Unit

    WWW.OASD.CN 1.16 Laser Unit (1) Remove screw "a" and take off the harness cover. (2) Remove two screws "b." (3) Disconnect the polygon motor harness and laser flat cable from the laser unit. (4) Lift up the laser unit. NOTE: When handling the laser unit, take care not to touch the inside of the unit, glass, or mirror.

  • Page 71: Heat-Fixing Unit And Fu Lamp

    WWW.OASD.CN 1.17 Heat-fixing Unit and FU Lamp (1) Remove the screw from the harness duct. (2) Peel off tape and take off the scanner motor harness, CIS harness, and VC harness* from the harness duct. (3) Unhook the harness duct from the main chassis in the directions of arrows Q and R. *Provided on models supporting video capture IV - 30 WWW.OASD.CN...
  • Page 72 WWW.OASD.CN (4) Remove three screws (two "a" and one "b"). (5) Disconnect the long heater wire (of the heater harness) from the upper center of the heat-fixing unit. (6) Disconnect the short heater wire (of the heater harness) from the left end of the heat-fixing unit. (7) Lift up the heat-fixing unit and disconnect the heater thermistor harness from the engine PCB.

  • Page 73: [Disassembling The Heat-Fixing Unit

    WWW.OASD.CN [Disassembling the heat-fixing unit] (1) Remove the three screws and take off the FU front paper guide. (2) Remove the three screws and take off the star wheel holder ASSY. Heat-fixing unit Screw, bind M3x10 Screw, bind M3x10 Star wheel holder ASSY FU front paper guide (3) Release the heater thermistor harness from the three harness guides provided on the underside of the heat-fixing unit.
  • Page 74 WWW.OASD.CN (6) Separate the lower FU frame from the upper one. Boss Upper FU frame Hook Boss Lower FU frame Hook (7) Remove the screw securing the lamp lock plate at the gear side of the upper FU frame. At the other side, loosen the screw.
  • Page 75 WWW.OASD.CN CAUTION: When securing the halogen lamp to the lamp lock plate with the screw, be sure to use the plastic jig as shown below to avoid damaging the edge of the FU lamp with a screwdriver. Lamp lock plate Screw Halogen lamp Plastic jig...
  • Page 76 WWW.OASD.CN NOTE: When setting the heater roller to the upper FU frame, fit the two ribs of the bushing 25 onto the bosses provided on the FU frame as shown below. HR gear 34 Bushing 25 Heater roller Boss NOTE: At the gear side of the heater roller, fit bushing 25 onto the heater roller with the 0.5 mm thick boss facing UP.
  • Page 77 WWW.OASD.CN NOTE: When setting the heater roller into the upper FU frame, take care not to damage the heater roller with the four hooks. Hooks Heater roller Hooks Upper FU frame (11) Remove the cleaner ASSY and cleaner spring from the upper FU frame. Cleaner ASSY Cleaner spring Upper FU frame...
  • Page 78 WWW.OASD.CN (12) From the lower FU frame, gently lift up the right end of the pressure roller 25 and remove it. Pressure roller 25 Lower FU frame (13) At each of the right and left ends of the lower FU frame, push down the PR bushing to incline it inwards and take it out.
  • Page 79 WWW.OASD.CN (16) Release the heater thermistor harness from the harness guides provided on the upper FU frame. Then remove the screw and take off the thermistor. Harness guides Thermistor Upper FU frame Taptite, bind B M3x12 NOTE: When setting the thermistor into the upper FU frame, insert it in the direction shown below.
  • Page 80 WWW.OASD.CN (17) From the upper FU frame, remove the screw and take off the idle gear 13. Then slide the ejection roller to the left and take it out to the front. Upper FU frame Ejection roller Taptite, B M2.3x10 Idle gear 13 (18) Unlatch each of the four ejection pinch roller holders R and L from the upper FU frame and take it out.
  • Page 81 WWW.OASD.CN (19) Remove a pair of ejection pinch rollers from each of the ejection pinch roller holders R and L. Ejection pinch rollers Ejection pinch rollers Ejection pinch roller holder R Ejection pinch roller holder L (20) Remove the screw from each of the four claw holder plates and take them off. Next turn each of the separate claw ASSYes from the bottom to align its cutout with the opening provided in the upper FU frame.
  • Page 82 WWW.OASD.CN (21) Release the paper ejection sensor actuator from the hook on the lower FU frame and then remove it in the direction of the arrow shown below together with the ejection actuator spring. Paper ejection sensor actuator Ejection actuator spring Lower FU frame NOTE: When setting the paper ejection sensor actuator and its spring, make sure that they are fitted into place as illustrated below.
  • Page 83 WWW.OASD.CN (22) From the upper FU frame, remove the screw, slightly lift up the shutter of the ejection actuator 3, and remove the jam sensor PCB. Screw, bind B tite 3x10 Jam sensor PCB Ejection actuator 3 Upper FU frame (23) Turn the ejection actuator 3, move it to the right, and lift it up and out of the support.
  • Page 84 WWW.OASD.CN (24) Remove the screw and take off the actuator holder. Then unhook end "A" of the ejection actuator spring 2 from the upper FU frame and pull up the ejection actuator 2 together with the spring. Taptite, cup M3x8 Hook Ejection Actuator holder...

  • Page 85: Fan

    WWW.OASD.CN 1.18 Fan (1) Disconnect the fan harness from the engine PCB. (2) Remove two screws, take out the heater wires from the latch of the fan duct, and take off the fan duct together with the fan. IV - 44 WWW.OASD.CN...
  • Page 86 WWW.OASD.CN (3) As shown below, pull the fan duct outwards and take out the fan. n n n n Reassembling Notes • Put the fan back into place so that the rating label faces outwards and upside down. • Route the heater wires through the latch of the fan duct as shown on the previous page. IV - 45 WWW.OASD.CN...

  • Page 87: Drive Gear Assy And Main Motor Assy

    WWW.OASD.CN 1.19 Drive Gear ASSY and Main Motor ASSY (1) Remove five screws from the drive gear ASSY. (2) Tilt the drive gear ASSY towards you while taking care not to drop the develop joint and spring, and then disconnect the main motor harness. (3) Remove the front cover link and idle gear 56 from the main chassis.
  • Page 88 WWW.OASD.CN (4) Remove four screws and take off the main motor ASSY from the drive gear ASSY. n n n n Reassembling Notes • If you have removed the gear 39/98 from the drive gear ASSY, hook the spring as shown below. IV - 47 WWW.OASD.CN...

  • Page 89: Ncu Shield And Ncu Pcb

    WWW.OASD.CN 1.20 NCU Shield and NCU PCB (1) Remove three screws from the NCU shield, then take off the NCU shield. Taptite, cup S M3x6 (Tightening torque: 0.5 N•m) (2) USA version: Disconnect the main-NCU harness from the main PCB. European version: Disconnect the main-NCU harness and main-NCU harness 2 from the main PCB.
  • Page 90 WWW.OASD.CN n n n n Reassembling Notes [USA version] • Route the main-NCU harness above the scanner motor harness as illustrated below. [European version] • As illustrated below, route the main-NCU harness and main-NCU harness 2 between the NCU PCB and the power supply bracket to prevent them from interfering with the primary circuitry on the NCU PCB.

  • Page 91: Bottom Plate, Main Pcb And Bottom Insulation Film

    WWW.OASD.CN 1.21 Bottom Plate, Main PCB, and Bottom Insulation Film (1) Disconnect the following harnesses and flat cable from the main PCB: • Panel-main harness (6-pin, P3) • Main-LV-engine harness (6-pin, P22) • Laser flat cable (P9) • Engine-main harness (12-pin, P8) •...
  • Page 92 WWW.OASD.CN (2) Turn the main chassis upside down. (3) Remove 14 screws (nine "a" and five "b"). (4) Slightly lift up the bottom plate and pull it to the rear until you can remove screw "c." (5) Remove screw "c" to release the grounding wire. (6) For models available with a 2nd paper cassette: Unhook the 2nd cassette relay PCB bracket from the bottom plate.
  • Page 93 WWW.OASD.CN (8) Remove screw "d" and disconnect the paper ejection sensor PCB from the main PCB. (9) Remove five screws (three "e" and two "f"), then take off the main PCB from the bottom plate. (10) Remove the bottom insulation film. "d"...
  • Page 94 WWW.OASD.CN Setting up the main PCB after replacement * For the American version equipped with a handset. IV - 53 WWW.OASD.CN...

  • Page 95: Low-Voltage Power Supply Pcb And Power Inlet

    WWW.OASD.CN 1.22 Low-voltage Power Supply PCB and Power Inlet (1) Remove two screws "g" and take off the rear underbar. (2) Remove screw "h." (3) Slightly lift up the low-voltage power supply PCB and disconnect the heater harness and main- LV-engine harness.
  • Page 96 WWW.OASD.CN Reassembling Notes • When connecting the power inlet to the low-voltage power supply PCB, insert the brown and blue lead wires into eyelets L and N in the PCB, respectively, and then solder those wires on the solder side of the PCB. •...

  • Page 97: Inner Insulation Film, High-Voltage Power Supply Pcb, Engine Pcb, And 2Nd Cassette Relay Pcb

    WWW.OASD.CN 1.23 Inner Insulation Film, High-voltage Power Supply PCB, Engine PCB, and 2nd Cassette Relay PCB* (*Provided on models available with a 2nd paper cassette) (1) Remove screw "a" and take off the inner insulation film. (2) Remove three screws (two "b" and one "c") from the high-voltage power supply PCB and engine PCB.
  • Page 98 WWW.OASD.CN (6) For models available with a 2nd paper cassette: Pull the 2nd cassette relay PCB bracket to take out its harness. Remove the screw and take off the 2nd cassette relay PCB from its bracket. Reassembling Notes • Before reinstalling the high-voltage power supply PCB, push in the spring with a flat screwdriver until it snaps into place as shown below.

  • Page 99: Toner Sensor (Light-Receiver) Pcb And Toner Sensor (Led) Pcb

    WWW.OASD.CN 1.24 Toner Sensor (light-receiver) PCB and Toner Sensor (LED) PCB (1) At the right-hand plate of the main chassis, remove the screw from the toner sensor (light- receiver) PCB, release its harness from the two harness latches, and then pull it out. (2) At the left-hand plate of the main chassis, press the both sides of the lens support on the toner sensor (LED) PCB with your fingers to release them from the main chassis, release its harness from the two latches, and then pull it out.

  • Page 100: Gears And Paper Pick-Up Roller

    WWW.OASD.CN 1.25 Gears and Paper Pick-up Roller (1) Place the main chassis upside down. (2) Remove the inner gear 54 (by pulling its pawl outwards), gear 45 set P/R, gear 20 P/R, and the bushing from the end of the paper pick-up roller shaft. (3) Remove the pawled bushing by pulling its pawl outwards, then remove the paper pick-up roller and its shaft.

  • Page 101: Paper Feed Roller Assy

    WWW.OASD.CN 1.26 Paper Feed Roller ASSY (1) Unhook the latch (arrow ) provided on the underside of the plastic frame by using a small flat screwdriver and pull out the gear 21 (arrow (2) Place the main chassis rightside up. (3) At the right end of the paper feed roller shaft, pull up the pawl of the bushing (arrow ) with the tip of a flat screwdriver and move the paper feed roller ASSY to the left (arrow...

  • Page 102: Clutch Levers, Cassette Guide L, And Solenoid

    WWW.OASD.CN 1.27 Clutch Levers, Cassette Guide L, and Solenoid (1) Turn the main chassis upside down. (2) Remove the two screws and take off the front underbar (which is shown on page IV-54). (3) Place the main chassis rightside up. (4) Remove the clutch lever F/R by pulling its pawl outwards.

  • Page 103: Paper Cassette

    WWW.OASD.CN 1.28 Paper Cassette (1) Pull the pressure plate release lever to the front to release the pressure plate. (2) Fully slide the side guide (R or L) inwards (in the direction of arrow ) and remove the screw. Then release the latches (arrow ) and pull up the side guide (arrow (3) Release the pressure plate from the bosses (arrow ) and remove it (arrow...

  • Page 104: Cleaning Of High-Voltage Contacts And Grounding Contacts

    WWW.OASD.CN 1.29 Cleaning of High-voltage Contacts and Grounding Contacts If any toner particles, paper dust or dirt are on the contacts, clean them out. This will ensure that power flows correctly to enable printing. IV - 63 WWW.OASD.CN...
  • Page 105 WWW.OASD.CN IV - 64 WWW.OASD.CN...

  • Page 106: Lubrication

    WWW.OASD.CN LUBRICATION Apply the specified lubricants to the lubrication points as shown below. Lubricant amount Lubricant type (Manufacturer Half of a rice-sized Rice-sized pinch Two rice-sized pinches Five rice-sized pinches pinch of grease of grease (6 mm of grease (12 mm of grease (30 mm (3 mm Molykote grease...

  • Page 107: 2 ] Control Panel Locks

    WWW.OASD.CN [ 2 ] Control panel locks [ 3 ] Scanner frame ASSY, document take-in roller and its shaft, and separation roller and its shaft IV - 66 WWW.OASD.CN...

  • Page 108: 4 ] Top Cover

    WWW.OASD.CN [ 4 ] Top cover IV - 67 WWW.OASD.CN...

  • Page 109: 5 ] Drive Gear Assy

    WWW.OASD.CN [ 5 ] Drive gear ASSY IV - 68 WWW.OASD.CN...

  • Page 110: 6 ] Paper Cassette

    WWW.OASD.CN [ 6 ] Paper cassette IV - 69 WWW.OASD.CN...
  • Page 111 WWW.OASD.CN CHAPTER V. MAINTENANCE MODE WWW.OASD.CN...
  • Page 112 WWW.OASD.CN CHAPTER V. MAINTENANCE MODE CONTENTS ENTRY INTO THE MAINTENANCE MODE ............V-1 LIST OF MAINTENANCE-MODE FUNCTIONS ............V-2 DETAILED DESCRIPTION OF MAINTENANCE-MODE FUNCTIONS ....V-4 EEPROM Parameter Initialization ..............V-4 Printout of Scanning Compensation Data ............V-5 ADF Performance Test .................. V-7 Test Pattern 1....................

  • Page 113: Entry Into The Maintenance Mode

    WWW.OASD.CN 1. ENTRY INTO THE MAINTENANCE MODE To make the equipment enter the maintenance mode, press the Menu, *, 2, 8, 6, and 4 keys in this order. Within 2 seconds The equipment beeps for approx. one second and displays " "...

  • Page 114: List Of Maintenance-Mode Functions

    WWW.OASD.CN 2. LIST OF MAINTENANCE-MODE FUNCTIONS Maintenance-mode Functions Reference Function Function Subsection Code (Page) 3.1 (V-4) EEPROM Parameter Initialization 3.2 (V-5) Printout of Scanning Compensation Data 3.3 (V-7) ADF* Performance Test 3.4 (V-8) Test Pattern 1 3.5 (V-9) Firmware Switch Setting 3.5 (V-11) Printout of Firmware Switch Data 3.6 (V-12)
  • Page 115 WWW.OASD.CN - - - - - - - - - - - - - - - - - - - - - - - - - - IMPORTANT - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Basically, the maintenance-mode functions listed on the previous page should be accessed by service personnel only.

  • Page 116: Detailed Description Of Maintenance-Mode Functions

    WWW.OASD.CN 3. DETAILED DESCRIPTION OF MAINTENANCE-MODE FUNCTIONS EEPROM Parameter Initialization n Function The equipment initializes the parameters, user switches, and firmware switches registered in the EEPROM, to the initial values. Entering the function code 01 initializes all of the EEPROM areas, but entering 91 does not initialize some areas, as listed below.

  • Page 117: Printout Of Scanning Compensation Data

    WWW.OASD.CN Printout of Scanning Compensation Data n n n n Function The equipment prints out the white and black level data for scanning compensation. n n n n Operating Procedure Do not start this function merely after powering on the equipment but start it after carrying out a sequence of scanning operation.
  • Page 118 WWW.OASD.CN Scanning Compensation Data List V - 6 WWW.OASD.CN...

  • Page 119: Adf Performance Test

    WWW.OASD.CN ADF Performance Test n n n n Function The equipment counts the documents fed by the automatic document feeder (ADF) and displays the count on the LCD for checking the ADF performance. n n n n Operating Procedure (1) Set documents. (Allowable up to the ADF capacity.) The "DOC.

  • Page 120: Test Pattern 1

    WWW.OASD.CN Test Pattern 1 n n n n Function This function, much like the copying function, prints out test pattern 1 to allow the service personnel to check for record data missing or print quality. n n n n Operating Procedure Press the 0 and 9 keys in this order in the initial stage of the maintenance mode.

  • Page 121: Firmware Switch Setting And Printout

    WWW.OASD.CN Firmware Switch Setting and Printout [ A ] Firmware switch setting n n n n Function The facsimile equipment incorporates the following firmware switch functions which may be activated with the procedures using the control panel keys and buttons. The firmware switches have been set at the factory in conformity to the communications standards and codes of each country.
  • Page 122 WWW.OASD.CN Firmware Switches (WSW01 through WSW50) Continued WSW No. Function Reference Page WSW34 Function setting 12 WSW35 Function setting 13 WSW36 Function setting 14 WSW37 Function setting 15 WSW38 Function setting 16, in V. 34 mode WSW39 Transmission speed setting in V. 34 mode WSW40 Function setting 17, in V.
  • Page 123 WWW.OASD.CN [ B ] Printout of firmware switch data n n n n Function The equipment prints out the setting items and contents specified by the firmware switches. n n n n Operating Procedure (1) Press the 1 key twice in the initial stage of the maintenance mode. The "PRINTING"...

  • Page 124: Operational Check Of Lcd

    WWW.OASD.CN Operational Check of LCD n n n n Function This function allows you to check whether the LCD on the control panel works normally. n n n n Operating Procedure (1) Press the 1 and 2 keys in this order in the initial stage of the maintenance mode.
  • Page 125 WWW.OASD.CN MFC8500 MFC9660 FAX4100/FAX5750e/FAX4750e/FAX8360P Key & Button Entry Order V - 13 WWW.OASD.CN...

  • Page 126: Receiver Volume Adjustment (Applicable To The American Version Only

    WWW.OASD.CN Receiver Volume Adjustment (applicable to the American version only) n n n n Function The HIGH level of the handset receiver's volume will be influenced by the characteristics of the FET on the main PCB, so it requires fine adjustment according to the procedure given below. n n n n Operating Procedure (1) Connect the telephone line cord to the modular jack of the facsimile equipment and the telephone wall socket.

  • Page 127: Sensor Operational Check

    WWW.OASD.CN Sensor Operational Check n n n n Function This function allows you to check whether the 12 sensors (11 sensors on European models)-- document front sensor, document rear sensor, cover sensor, registration sensor, toner sensor, paper ejection sensor, hook switch*, 2nd registration sensor**, manual insertion sensor, cassette sensor, 2nd cassette sensor**, and jam sensor--operate correctly.

  • Page 128: Fine Adjustment Of Scanning Start/End Position

    WWW.OASD.CN 3.10 Fine Adjustment of Scanning Start/End Position n n n n Function This function allows you to adjust the scanning start/end position. n n n n Operating Procedure (1) Press the 5 and 4 keys in this order in the initial stage of the maintenance mode. The "SCAN START ADJ."...

  • Page 129: Cis Scanner Area Setting

    (1) Press the 7 and 4 keys in this order in the initial stage of the maintenance mode. The current customizing code (e.g., 9001 in the case of MFC8500 USA version) appears. (2) Enter the desired customizing code (e.g., 0002 in the case of MFC8500 Canadian version). The newly entered code appears.

  • Page 130: Display Of The Equipment's Log Information

    6) Drum change count, indicating how many times drum replacement has been made 7) Toner change count, indicating how many times toner replacement has been made 8) Copy page count (not appear on the MFC8500), indicating how many copies have been made...

  • Page 131: Equipment Error Code Indication

    WWW.OASD.CN 3.14 Equipment Error Code Indication n n n n Function This function displays an error code of the last error on the LCD. n n n n Operating Procedure (1) Press the 8 and 2 keys in this order in the initial stage of the maintenance mode. The LCD shows the "MACHINE ERROR X X."...

  • Page 132: Cancellation Of The Memory Security Mode (Applicable To The European Version Only

    WWW.OASD.CN 3.16 Cancellation of the Memory Security Mode (applicable to the European version only) n n n n Function This procedure can cancel the memory security mode. Use this procedure if the user forgets his/her password entered when setting the memory security mode so as not to exit from the memory security mode.
  • Page 133 WWW.OASD.CN CHAPTER VI. ERROR INDICATION AND TROUBLESHOOTING WWW.OASD.CN...
  • Page 134 WWW.OASD.CN CHAPTER VI. ERROR INDICATION AND TROUBLESHOOTING CONTENTS ERROR INDICATION....................VI-1 1.1 Equipment Errors ....................VI-1 [ 1 ] Error messages on the LCD............. VI-1 [ 2 ] Error codes shown in the "MACHINE ERROR X X" message..........VI-5 1.2 Communications Errors ..................VI-7 TROUBLESHOOTING ....................

  • Page 135: Error Indication

    WWW.OASD.CN 1. ERROR INDICATION To help the user or the service personnel promptly locate the cause of a problem (if any), the facsimile equipment incorporates the self-diagnostic functions which display error messages for equipment errors and communications errors. For the communications errors, the equipment also prints out the transmission verification report and the communications list.
  • Page 136 WWW.OASD.CN Messages on the LCD Probable Cause n Document jam (In the 1st row) CHECK DOCUMENT (1) The document length exceeds the limitation (400 or 90 cm) CHECK ORIGINAL registered by firmware switch WSW16. (Refer to Appendix (In the 2nd row) (Both the document front and rear sensors stay ON after the Remove document, then document has been fed by the registered length.)
  • Page 137 VI-6. MACHINE ERROR XX (In the 2nd row) Unplug machine, then call Brother. CHANGE DRUM SOON The service life of the drum unit will expire soon. This message appears for one minute. (You can turn this message indication on or off by the maintenance-mode function code 10, WSW31, selector 8.
  • Page 138 WWW.OASD.CN Messages on the LCD Probable Cause The registration sensor detects that paper shorter than the (In the 1st row) specified length has been fed. CHECK PAPER SIZE (In the 2nd row) Reload correct paper. If only an alarm beep is heard without any message on the LCD when the equipment is powered up, the ROM or RAM will be defective.

  • Page 139: 2 ] Error Codes Shown In The "Machine Error X X" Message

    WWW.OASD.CN [ 2 ] Error codes shown in the "MACHINE ERROR X X " message Error Code Error factor (Hex.) ( 71 Polygon motor does not synchronize with the reference clock. ) ( 72 Cannot detect Beam Detect signal. ) ( 73 No toner cartridge loaded.
  • Page 140 WWW.OASD.CN Error Code Error factor (Hex.) ( A7 One-line feeding timeout error. ) ( A8 One-line scanning timeout error. ) ( A9 Abnormal scanning reference voltage. ) ( AC Less than 50% faulty of white level data. ) ( B7 A/D converter reference voltage error (at High level).

  • Page 141: Communications Errors

    WWW.OASD.CN Communications Errors If a communications error occurs, the facsimile equipment emits an audible alarm (intermittent beeping) for approximately 4 seconds, displays the corresponding error message, and prints out the transmission verification report if the equipment is in sending operation. VI - 7 WWW.OASD.CN...
  • Page 142 WWW.OASD.CN n n n n Definition of Error Codes on the Communications List Calling Code 1 Code 2 Causes Wrong number called. Retrieval file error. Image data entry error. No dial tone detected before start of dialing. Busy tone detected before dialing. 2nd dial tone not detected.
  • Page 143 WWW.OASD.CN Code 1 Code 2 Causes EOR and NULL received. Effective command not received. Unable to reserve a command receiver memory. Image data file error. Compatibility [checking the NSF and DIS] Code 1 Code 2 Causes Remote terminal only with V.29 capability in 2400 or 4800 bps transmission.
  • Page 144 WWW.OASD.CN Instructions received from the remote terminal [checking the NSC, DTC, NSS, and DCS] Code 1 Code 2 Causes Illegal coding system requested. Illegal recording width requested. ECM requested although not allowed. Polled while not ready. No document to send when polled. Nation code or manufacturer code not coincident.
  • Page 145 WWW.OASD.CN ID checking Code 1 Code 2 Causes Password plus "lower 4 digits of telephone number" not coincident. Password not coincident. Polling ID not coincident. Entered confidential mailbox ID uncoincident with the mailbox ID. Relay broadcasting ID not coincident. Entered retrieval ID uncoincident with that of the mailbox ID. DCN reception Code 1 Code 2...
  • Page 146 WWW.OASD.CN Signal isolation Code 1 Code 2 Causes Unable to detect video signals and commands within 6 seconds after CFR is transmitted. Received PPS containing invalid page count or block count. (10) Video signal reception Code 1 Code 2 Causes Error correction sequence not terminated even at the final transmission speed for fallback.
  • Page 147 WWW.OASD.CN (11) General communications-related Code 1 Code 2 Causes Unable to receive the next-page data. Unable to receive polling even during turn-around transmission due to call reservation. PC interface error. Transmission canceled by pressing the Stop key (before completion of the G3 FAX negotiation). Transmission canceled by pressing the Stop key (after completion of the G3 FAX negotiation).
  • Page 148 WWW.OASD.CN Modem error details (Code 3) Code 3 Causes Timeout waiting for INFO0. Checksum error in INFO0. Timeout waiting for tone A or B. Timeout waiting for first phase reverse. Timeout waiting for probing cut-off tone. Timeout waiting for second phase reverse. Timeout waiting for end of probing.
  • Page 149 WWW.OASD.CN Code 3 Causes S-sequence finished before prediction in phase 3. Timeout waiting for S-Sbar in phase 3. Timeout waiting for S-Sbar in phase 3. Timeout waiting for S in phase 3. Training after TRN failure. Problem with S-sequence in phase 4. FED turned off in S-sequence in phase 4.
  • Page 150 WWW.OASD.CN (14) Equipment error Code 1 Code 2 Causes Burn-in operation canceled by pressing the Stop key. Unrecoverable MODEM error. VI - 16 WWW.OASD.CN...

  • Page 151: Troubleshooting

    WWW.OASD.CN TROUBLESHOOTING Introduction This section gives the service personnel some of the troubleshooting procedures to be followed if an error or malfunction occurs with the facsimile equipment. It is impossible to anticipate all of the possible problems which may occur in future and determine the troubleshooting procedures, so this section covers some sample problems.
  • Page 152 WWW.OASD.CN (3) All cables and harnesses are firmly connected. (4) None of the fuses are blown. Recording paper Check that: (1) A recommended type of recording paper is used. (2) The recording paper is not dampened. VI - 18 WWW.OASD.CN...

  • Page 153: Troubleshooting Procedures

    WWW.OASD.CN Troubleshooting Procedures [ 1 ] Control panel related Trouble Check: (1) LCD shows nothing. Panel-main harness between the main PCB and the control panel PCB Control panel PCB Low-voltage power supply PCB Main PCB (2) Control panel inoperative. Panel-main harness between the main PCB and the control panel PCB Control panel PCB FPC key...

  • Page 154: 3 ] Communications Related

    WWW.OASD.CN [ 3 ] Communications related Trouble Check: (1) No tone is transmitted. Main PCB NCU PCB [ 4 ] Paper/document feeding related Trouble Check: (1) Neither "COPY: PRESS COPY" Sensors by using the maintenance-mode function code nor "FAX: NO. & START" 32.

  • Page 155: 5 ] Print-Image Related

    WWW.OASD.CN [ 5 ] Print-image related If the received or sent image has any problem, first make a copy with the facsimile equipment. If the copied image is normal, the problem may be due to the remote terminal; if it is abnormal, proceed to the following checks: Trouble Action to be taken...
  • Page 156 WWW.OASD.CN Trouble Action to be taken (3) Light At the scanner Check the following components: - CIS unit - Main PCB At the printer side Replace the toner cartridge with a new one and print 4 to 5 pages. If the problem persists, proceed to the next step. Remove the toner cartridge and start printing.
  • Page 157 WWW.OASD.CN Trouble Action to be taken (5) Black and blurred vertical At the scanner stripes or band Check the following components: - CIS unit At the printer side Clean the paper path which may be contaminated with toner. Slide the wire cleaner to clean the corona wire inside the drum unit.
  • Page 158 WWW.OASD.CN Trouble Action to be taken (9) White vertical streaks At the scanner Check the following components: - CIS unit At the printer side Clean the laser beam window on the laser unit. Replace the toner cartridge. Replace the drum unit. (10) White horizontal stripes At the printer side Replace the drum unit.
  • Page 159 WWW.OASD.CN Trouble Action to be taken (12) Faulty image registration At the printer side (Leading edge of image Instruct the user not to load paper exceeding the limit on the starts too late on paper) paper cassette(s). Instruct the user to use the recommended types of paper. Replace the paper cassette(s).
  • Page 160 WWW.OASD.CN Trouble Action to be taken (15) Dirt back of paper At the printer side Clean the pressure roller in the heat-fixing unit. Replace the heat-fixing unit. Replace the drum unit. Replace the high-voltage power supply PCB. (16) Poor fixing At the printer side Instruct the user to use paper of the recommended weight (less than 36 lb./m...
  • Page 161 WWW.OASD.CN Trouble Action to be taken (20) Fading (black to white) At the printer side Replace the toner cartridge. Replace the high-voltage power supply PCB. (21) Gray background At the printer side Instruct the user to use paper of the recommended weight (less than 36 lb./m Clean the toner sensors (LED and light-receiver).

  • Page 162: Location Of High-Voltage Contacts And Grounding Contacts

    WWW.OASD.CN Location of High-voltage Contacts and Grounding Contacts VI - 28 WWW.OASD.CN...
  • Page 163 WWW.OASD.CN VI - 29 WWW.OASD.CN...
  • Page 164 WWW.OASD.CN MFC8500/FAX4100/FAX4750e/FAX5750e MFC9660/FAX8360P Appendix 1. EEPROM Customizing Codes WWW.OASD.CN...
  • Page 165 (2) Press the 7 and 4 keys in this order in the initial stage of the maintenance mode. The current customizing code (e.g., 9001 in the case of MFC8500 USA version) appears. (3) Enter the desired customizing code (e.g., 0002 in the case of MFC8500 Canadian version). The newly entered code appears.
  • Page 166 WWW.OASD.CN EEPROM Customizing Codes List Model Versions MFC8500 FAX4100 FAX4750e FAX5750e U.S.A. 9001 9001 9101 9201 CANADA 0002 9102 Model Versions MFC9660 FAX8360P GERMANY 0003 0003 U.K. 0004 0004 FRANCE 0005 0005 AUSTRALIA 0006 0006 NORWAY 0007 0007 BELGIUM 0008...
  • Page 167 WWW.OASD.CN MFC8500/FAX4100/FAX4750e/FAX5750e MFC9660/FAX8360P Appendix 2. Firmware Switches (WSW) WWW.OASD.CN...
  • Page 168 WWW.OASD.CN WSW No. Function Page WSW01 Dial pulse setting WSW02 Tone signal setting WSW03 PABX mode setting WSW04 TRANSFER facility setting WSW05 1st dial tone and busy tone detection WSW06 Pause key setting and 2nd dial tone detection WSW07 Dial tone setting 1 WSW08 Dial tone setting 2 WSW09...

  • Page 169: Wsw01 Dial Pulse Setting

    WWW.OASD.CN WSW01 (Dial pulse setting) Selector Function Setting and Specifications No. 1 2 Dial pulse generation mode 10-N No. 3 4 60 ms Break time length in pulse dialing 67 ms 40 ms (for 16 PPS) 64 ms (at 106-ms intervals) No.

  • Page 170: Wsw02 Tone Signal Setting

    WWW.OASD.CN Selector 7: Switching between pulse (DP) and tone (PB) dialing, by the function switch This selector determines whether or not the dialing mode may be switched between the pulse (DP) and tone (PB) dialing by using the function switch. Selector 8: Default dialing mode, pulse (DP) or tone (PB) dialing This selector sets the default dialing mode (pulse dialing or tone dialing) which may be changed by...

  • Page 171: Wsw03 Pabx Mode Setting

    WWW.OASD.CN WSW03 (PABX* mode setting) Selector Function Setting and Specifications CNG detection when sharing a modular wall socket with a 0: A 1: B telephone No. 2 3 4 0 0 0 : 50 ms 0 0 1 : 210 ms 0 1 0 : 500 ms Min.
  • Page 172 WWW.OASD.CN Selectors 6 and 7: Dial tone detection in PABX These selectors activate or deactivate the dial tone detection function which detects a dial tone when a line is connected to the PABX. Setting both of these selectors to "1" activates the dial tone detection function so that the equipment starts dialing upon detection of a dial tone when a line is connected.

  • Page 173: Wsw04 Transfer Facility Setting

    WWW.OASD.CN WSW04 (TRANSFER facility setting) Selector Function Setting and Specifications Earth function in transfer facility 0: Provided Not provided Not used. No. 5 6 200 ms Earth time length for earth function 300 ms 500 ms 700 ms No. 7 8 80 ms Break time length for flash function 110 ms...
  • Page 174 WWW.OASD.CN WSW05 (1st dial tone and busy tone detection Selector Function Setting and Specifications No. 1 2 3 0 0 0 3.5 sec. WAIT 0 0 1 7.0 sec. WAIT 0 1 0 10.5 sec. WAIT 1st dial tone detection 0 1 1 14.0 sec.
  • Page 175 WWW.OASD.CN Selectors 5 and 6: Busy tone detection in automatic sending mode These selectors determine whether or not the equipment automatically disconnects a line upon detection of a busy tone in automatic sending mode. Setting selector 6 to "0" ignores a busy tone so that the equipment does not disconnect the line. Setting selectors 5 and 6 to "0"...

  • Page 176: Wsw06 Pause Key Setting And 2Nd Dial Tone Detection

    WWW.OASD.CN WSW06 (Pause key setting and 2nd dial tone detection) Selector Function Setting and Specifications No. 1 2 3 0 0 0 No pause 0 0 1 3.5 sec. WAIT 0 1 0 7 sec. WAIT 0 1 1 10.5 sec. WAIT Pause key setting and 2nd dial tone 1 0 0 14 sec.
  • Page 177 WWW.OASD.CN Selectors 1 through 3: Pause key setting and 2nd dial tone detection Selectors No WAIT is inserted even if the Pause key is pressed. If you press the Pause key during dialing, the facsimile equipment will insert WAIT as defined in the above table. If the Pause key is pressed repeatedly, the equipment inserts the specified WAIT multiplied by the number of depressions.

  • Page 178: Wsw07 Dial Tone Setting

    WWW.OASD.CN WSW07 (Dial tone setting 1) Selector Function Setting and Specifications No. 1 2 Narrows by 10 Hz Frequency band range Initial value Widens by 10 Hz Line current detection 0: No 1: Yes No. 4 5 6 0 0 0 -21 dBm 0 0 1 -24 dBm...

  • Page 179: Wsw08 Dial Tone Setting

    WWW.OASD.CN WSW08 (Dial tone setting 2) Selector Function Setting and Specifications No. 1 2 3 0 0 0 50 ms 0 0 1 210 ms 0 1 0 500 ms 1st dial tone detection time length 0 1 1 800 ms 1 0 0 900 ms 1 0 1...

  • Page 180: Wsw09 Protocol Definition

    WWW.OASD.CN WSW09 (Protocol definition 1) Selector Function Setting and Specifications Frame length selection 0: 256 octets 1: 64 octets Use of non-standard commands 0: Allowed 1: Prohibited No. 3 4 : 4 times No. of retries : 3 times : 2 times : 1 time T5 timer 0: 300 sec.

  • Page 181: Wsw10 Protocol Definition

    WWW.OASD.CN WSW10 (Protocol definition 2) Selector Function Setting and Specifications Switching of DPS, following the 0: No 1: Yes CML ON/OFF Time length from transmission of 0: 100 ms 1: 50 ms the last dial digit to CML ON Time length from CML ON to 0: 2 sec.

  • Page 182: Wsw11 Busy Tone Setting

    WWW.OASD.CN WSW11 (Busy tone setting) Selector Function Setting and Specifications No. 1 : Narrows by 10 Hz Frequency band range : Initial value : Widens by 10 Hz Not used. 1: 400-600/400-600 ms 1: 175-440/175-440 ms ON/OFF time length ranges 1: 100-1000/17-660 ms (More than one setting allowed) 1: 110-410/320-550 ms...

  • Page 183: Wsw12 Signal Detection Condition Setting

    WWW.OASD.CN WSW12 (Signal detection condition setting) Selector Function Setting and Specifications No. 1 1500 ms Min. OFF time length of calling 500 ms signal (Ci) 700 ms 900 ms No. 3 6 sec. Max. OFF time length of calling 7 sec. signal (Ci) 9 sec.

  • Page 184: Wsw13 Modem Setting

    WWW.OASD.CN WSW13 (Modem setting) Selector Function Setting and Specifications No. 1 0 km Cable equalizer 1.8 km 3.6 km 5.6 km No. 3 -43 dBm Reception level -47 dBm -49 dBm -51 dBm 0: 0 dB 1: 8 dB 0: 0 dB 1: 4 dB Modem attenuator 0: 0 dB...

  • Page 185: Wsw14 Auto Ans Facility Setting

    WWW.OASD.CN WSW14 (AUTO ANS facility setting) Selector Function Setting and Specifications No. 1 13 Hz Frequency band selection 15 Hz (Lower limit) 23 Hz 20 Hz No. 3 30 Hz Frequency band selection 55 Hz (Upper limit) 70 Hz 200 Hz No.

  • Page 186: Wsw15 Redial Facility Setting

    WWW.OASD.CN WSW15 (REDIAL facility setting) Selector Function Setting and Specifications No. 1 5 minutes Selection of redial interval 1 minute 2 minutes 3 minutes No. 3 16 times 1 times No. of redialings 2 times 3 times 15 times Redialing for no response sent from Redialing No redialing the called terminal...

  • Page 187: Wsw16 Function Setting

    WWW.OASD.CN WSW16 (Function setting 1) Selector Function Setting and Specifications Not used. CCITT superfine recommendation 0: OFF 1: ON Not used. Max. document length limitation 0: 400 cm 1: 90 cm Stop key pressed during reception 0: Not functional 1: Functional Selector 2: CCITT superfine recommendation If this selector is set to "1,"...

  • Page 188: Wsw17 Function Setting

    WWW.OASD.CN WSW17 (Function setting 2) Selector Function Setting and Specifications No. 1 No alarm Always valid Off-hook alarm Valid except when 'call reservation' is selected. Not used. Calendar clock type U.S.A. type 1: European type Not used. Non-ring reception 1: ON Not used.

  • Page 189: Wsw18 Function Setting

    WWW.OASD.CN WSW18 (Function setting 3) Selector Function Setting and Specifications Not used. No. 2 40 sec. Detection enabled time for CNG and 0 sec. (No detection) no tone 5 sec. 80 sec. Not used. Registration of station ID Permitted Prohibited No.

  • Page 190: Wsw19 Transmission Speed Setting In V. 17 Mode

    WWW.OASD.CN WSW19 (Transmission speed setting in V. 17 mode) Selector Function Setting and Specifications No. 1 No. 4 First transmission speed choice for 2,400 bps fallback 4,800 bps 7,200 bps 9,600 bps 12,000 bps Last transmission speed choice for fallback 14,400 bps V.

  • Page 191: Wsw20 Overseas Communications Mode Setting

    WWW.OASD.CN WSW20 (Overseas communications mode setting) Selector Function Setting and Specifications EP* tone prefix 0: OFF 1: ON Overseas communications mode 0: 2100 Hz 1: 1100 Hz (Reception) Overseas communications mode 0: OFF 1: Ignores DIS once. (Transmission) No. 4 5 : 100 ms Min.

  • Page 192: Wsw21 Tad Setting

    WWW.OASD.CN WSW21 (TAD setting 1) Selector Function Setting and Specifications Not used. Erasure of message stored in the 0: Yes memory after the message transfer Selector 8: Erasure of message Setting this selector to "0" will erase the message recorded in the memory after the document retrieval feature transfers the message.

  • Page 193: Wsw23 Communications Setting

    WWW.OASD.CN WSW23 (Communications setting) Selector Function Setting and Specifications 0: From the head of a series of zeros Starting point of training check (TCF) 1: From any arbitrary point No. 2 3 Allowable training error rate 0.5% No. 4 5 Decoding error rate for transmission of RTN Not used.

  • Page 194: Wsw24 Tad Setting

    WWW.OASD.CN WSW24 (TAD setting 2) Selector Function Setting and Specifications Not used. No. 3 4 4 sec. Time length from CML ON to start of pseudo ring backtone 3 sec. transmission 2 sec. 1 sec. 0 dB 8 dB Attenuator for playback of ICM/ 0 dB 4 dB OGM to the line...

  • Page 195: Wsw25 Tad Setting

    WWW.OASD.CN WSW25 (TAD setting 3) Selector Function Setting and Specifications No. 1 0 sec. Delay time for starting detection of 8 sec. voice signal 16 sec. 24 sec. No. 3 -43 dB (A) Detection level for no voice signal -46 dB (B) -49 dB (C) -51 dB (D) No.

  • Page 196: Wsw26 Function Setting

    WWW.OASD.CN WSW26 (Function setting 4) Selector Function Setting and Specifications Not used. Dialing during document reading into 0: Disabled 1: Enabled the temporary memory in in-memory message transmission No. of CNG cycles to be detected No. 4 5 0.5 (A) (when the line is connected via the external telephone except in the external TAD mode or via the built-...
  • Page 197 WWW.OASD.CN WSW27 (Function setting 5) Selector Function Setting and Specifications Definition of programmable key 0: TEL key 1: TEL/POLLING key Ringer OFF setting 0: Yes 1: No Not used. Detection of distinctive ringing 0: Yes 1: No pattern Not used. Toner save mode 0: Yes 1: No...

  • Page 198: Wsw28 Function Setting

    WWW.OASD.CN WSW28 (Function setting 6) Selector Function Setting and Specifications No. 1 2 3 0 0 0 0 dB 0 0 1 +1 dB 0 1 0 +2 dB Transmission level of DTMF high- 0 1 1 +3 dB band frequency signal 1 0 0 0 dB 1 0 1...
  • Page 199 WWW.OASD.CN WSW29 (Function setting 7) Selector Function Setting and Specifications Not used. Impedance switching control in pulse 0: OFF 1: ON dialing Beep when the memory area for the 0: No 1: Yes activity report becomes full NOTE: Selectors 7 and 8 are applicable to the European version only. Selector 8: Beep when the memory area for the activity report becomes full If this selector is set to "1,"...

  • Page 200: Wsw31 Function Setting

    WWW.OASD.CN WSW31 (Function setting 9) Selector Function Setting and Specifications Not used. 0: 100% 1: Reduction rate specified Default reduction rate for failure of according to the current automatic reduction during recording paper size Not used. Minimum short-OFF duration in 0: 130 ms 1: 90 ms distinctive ringing...

  • Page 201: Wsw32 Function Setting

    WWW.OASD.CN WSW32 (Function setting 10) Selector Function Setting and Specifications Not used. No. 5 Standard Default resolution Fine Super fine Photo No. 7 Automatic Default contrast Super light Super dark Selectors 5 and 6: Default resolution These selectors set the default resolution which applies when the equipment is powered up or completes a transaction.

  • Page 202: Wsw35 Function Setting

    WWW.OASD.CN WSW34 (Function setting 12 Selector Function Setting and Specifications Not used. No. of CNG cycles to be detected No. 4 (when the line is connected via the facsimile equipment in the F/T mode or via the external telephone in the external TAD mode) No.
  • Page 203 WWW.OASD.CN WSW36 (Function setting 14) Selector Function Setting and Specifications ECP* mode 0: ON 1: OFF Recovery from inactive PC interface 0: Disabled 1: Enabled PC power-off recognition time 0: Normal 1: Long Not used. Escape from phase C 0: Yes 1: No No.

  • Page 204: Wsw37 Function Setting

    WWW.OASD.CN WSW37 (Function setting 15) Selector Function Setting and Specifications Printout of the stored image data of an unsent document onto the error 0: No report Erasure of the stored image data of an unsent document at the time of 0: No the subsequent in-memory message transmission...

  • Page 205: Wsw38 Function Setting 16, In V. 34 Mode

    WWW.OASD.CN WSW38 (Function setting 16, in V. 34 mode) Selector Function Setting and Specifications No. 1 X : Automatic Setting of the equalizer : Fixed to 4 points : Fixed to 16 points Sending level of guard tone at 0: Normal - 7 db Normal phase 2 Stepping down the transmission...

  • Page 206: Wsw39 Transmission Speed Setting In V. 34 Mode

    WWW.OASD.CN WSW39 (Transmission speed setting in V. 34 mode) Selector Function Setting and Specifications No. 1 No. 5 2400 bps 4800 bps 7200 bps First transmission speed choice for fallback 9600 bps 12000 bps 14400 bps 16800 bps 19200 bps 21600 bps 24000 bps 26400 bps...

  • Page 207: Wsw40 Function Setting 17, In V. 34 Mode

    WWW.OASD.CN WSW40 (Function setting 17, in V. 34 mode) Selector Function Setting and Specifications Not used. 0: Disabled 1: Enabled Automatic paper cassette choice in (Fixed to upper copying paper cassette) Not masking Masking No. 3 3429 symbols/sec No. 4 3200 symbols/sec Masking of symbol rate(s) No.
  • Page 208 WWW.OASD.CN Symbol rate Transmission speed Symbol rate Transmission speed Symbol rate Transmission speed (bps) (bps) (bps) 2400 2400 3000 4800 3429 4800 4800 7200 7200 7200 9600 9600 9600 12000 12000 12000 14400 14400 14400 16800 16800 16800 19200 19200 19200 21600 21600...

  • Page 209: Wsw41 Ccd Fluorescent Lamp And Modem Attenuator, In V. 34 Mode

    WWW.OASD.CN WSW41 (CCD fluorescent lamp and modem attenuator, in V. 34 mode) Selector Function Setting and Specifications No. 1 2 3 0 0 0 16 hours 0 0 1 24 hours 0 1 0 12 hours ON-duration of the fluorescent lamp 0 1 1 8 hours built in the CCD unit...
  • Page 210 WWW.OASD.CN WSW42 (Function setting 18) Selector Function Setting and Specifications Incoming mail server POP* Incoming mail server SMTP* Internet-FAX forward function JBIG* coding system Disabled Enabled Alarm message when the corona wire Enabled Disabled abnormally emits ions Issue of a drum cleaning prompting sheet when the corona wire Enabled Disabled...

  • Page 211: Wsw43 Function Setting

    WWW.OASD.CN WSW43 (Function setting 19) Selector Function Setting and Specifications Not used. No. 2 Wait time for PCFax reception 50 ms (Class 2) and FPTS command 100 ms transmission 150 ms 0 ms No. 4 200 ms Detection time of 2100 Hz CED or 300 ms ANSam 400 ms...

  • Page 212: Wsw45 Speeding Up Scanning-2

    WWW.OASD.CN WSW45 (Speeding up scanning-2) Selector Function Setting and Specifications No. 1 2 3 0 0 0 : No automatic drawing-in 0 0 1 : 1 sec. Delay time from when documents 0 1 0 : 2 sec. are set until the ADF starts drawing 0 1 1 : 3 sec.

  • Page 213: Wsw46 Monitor Of Power On/Off State And Parallel Port Kept At High

    WWW.OASD.CN WSW46 (Monitor of power ON/OFF state and parallel port kept at high) Selector Function Setting and Specifications No. 1 2 0 0 : Disabled 0 1 : Monitor SELECT IN Monitoring the PC ON/OFF state 1 0 : Monitor STROBE 1 1 : Monitor both SELECT IN and STROBE...

  • Page 214: Wsw47 Delay Of Fax Line Disconnection

    WWW.OASD.CN WSW47 (Delay of FAX line disconnection) Selector Function Setting and Specifications Not used. No. 3 4 Delay of FAX line 0 0 : 200 ms disconnection when switching to 0 1 : 400 ms the pseudo-ringing external 1 0 : 700 ms telephone 1 1 : 1000 ms...
  • Page 215 WWW.OASD.CN MFC8500/FAX4100/FAX4750e/FAX5750e MFC9660/FAX8360P Appendix 3. Circuit Diagrams A. Main PCB (V. 17) (MFC8500) Main PCB (V. 34) (FAX4100/FAX4750e/FAX5750e/MFC9660/FAX8360P) B. Engine PCB C. Network Control Unit (NCU) PCB D. Control Panel PCB E. Power Supply PCBs WWW.OASD.CN...
  • Page 216 WWW.OASD.CN (Not mounted) Main PCB 1/5 Ceramic capacitor (MFC8500) Chemical capacitor WWW.OASD.CN...
  • Page 217 WWW.OASD.CN (Not mounted) Main PCB 2/5 Ceramic capacitor (MFC8500) Chemical capacitor WWW.OASD.CN...
  • Page 218 WWW.OASD.CN Main PCB 3/5 Ceramic capacitor Chemical capacitor (MFC8500) WWW.OASD.CN...
  • Page 219 WWW.OASD.CN Main PCB 4/5 Ceramic capacitor (MFC8500) Chemical capacitor WWW.OASD.CN...
  • Page 220 WWW.OASD.CN Main PCB 5/5 (MFC8500) Ceramic capacitor WWW.OASD.CN...
  • Page 221 WWW.OASD.CN Main PCB 1/5 (FAX4100/FAX4750e/FAX5750e/ MFC9660/FAX8360P) WWW.OASD.CN...
  • Page 222 WWW.OASD.CN Main PCB 2/5 (FAX4100/FAX4750e/FAX5750e/ MFC9660/FAX8360P) WWW.OASD.CN...
  • Page 223 WWW.OASD.CN Main PCB 3/5 (FAX4100/FAX4750e/FAX5750e/ MFC9660/FAX8360P) WWW.OASD.CN...
  • Page 224 WWW.OASD.CN Main PCB 4/5 (FAX4100/FAX4750e/FAX5750e/ MFC9660/FAX8360P) WWW.OASD.CN...
  • Page 225 WWW.OASD.CN Main PCB 5/5 (FAX4100/FAX4750e/FAX5750e/ MFC9660/FAX8360P) WWW.OASD.CN...
  • Page 226 WWW.OASD.CN Engine PCB WWW.OASD.CN...
  • Page 227 WWW.OASD.CN NCU PCB (V.17) (U.S.A./Canada) WWW.OASD.CN...
  • Page 228 WWW.OASD.CN NCU PCB (V.34) (U.S.A./Canada) WWW.OASD.CN...
  • Page 229 WWW.OASD.CN NCU PCB (Germany/United Kingdom/France/Norway/Belgium/ Netherlands/Switzerland/Ireland/Denmark/Austria/ Spain/Italy/Sweden) WWW.OASD.CN...
  • Page 230 WWW.OASD.CN NCU PCB (Australia/New Zealand) WWW.OASD.CN...
  • Page 231 WWW.OASD.CN NCU PCB (Asia) WWW.OASD.CN...
  • Page 232 WWW.OASD.CN + 5 V + 5 V S G N D V S S S G N D V D D S G N D + 5 D L P D 6 5 6 1 2 G B R S T R / W 5 2 0 8 9 - 1 6 2 0 5 2 0 8 9 - 1 4 2 0...
  • Page 233 WWW.OASD.CN P A N E L K E Y M A T R I X R E F E R E N C E T A B L E K E Y N O . K E Y C O D E K E Y N O .
  • Page 234 WWW.OASD.CN Power Supply PCB (100-120V) Low-voltage power supply WWW.OASD.CN...
  • Page 235 WWW.OASD.CN Power Supply PCB (200-240V) Low-voltage power supply WWW.OASD.CN...
  • Page 236 WWW.OASD.CN Power Supply PCB High-voltage power supply WWW.OASD.CN...
  • Page 237 WWW.OASD.CN MFC8500/FAX4100/FAX4750e/FAX5750e MFC9660/FAX8360P Appendix 4. Toner Cartridge Weight WWW.OASD.CN...
  • Page 238 WWW.OASD.CN The table below lists the approximate weights of toner cartridges and toner contained in them. The weight of each toner cartridge may vary by ±2 to 3 g depending upon the weight of the cartridge casing. TN430 TN460 Toner cartridge type Total weight Toner weight Total weight...
  • Page 239 WWW.OASD.CN June '02 ƒ SM-FAX001 8X5513 Printed in Japan WWW.OASD.CN...

This manual is also suitable for:

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